The ZWO EAF (Electronic Automatic Focuser) is an electronic focusing system designed to provide maximum precision for astrophotography setups.
CHF 168.00incl. Swiss VAT
The ZWO EAF (Electronic Automatic Focuser) is an electronic focusing system designed to provide maximum precision for astrophotography setups. Thanks to its custom stepper motor, reduction gear, and robust design, it enables extremely precise focus adjustments, which are essential for fully harnessing the performance of an astronomical instrument.
With its 1:128 reduction ratio, the EAF offers micrometer-level precision. This allows for very precise control of the eyepiece holder's position and maintains optimal focus, especially during long deep-sky imaging sessions.
Accuracy is the ZWO EAF's main strength. Its custom stepper motor is associated with a system for reducing 1:128 in order to allow for extremely precise movements of the focusing mechanism.
This precision is particularly important in astrophotography, where even the slightest variation in focus can have a visible impact on the size and sharpness of the stars. The EAF allows for gradual and precise adjustments to maintain a perfectly focused image.
This precision of movement is also ideal for automatically controlled systems. The motor can make small, successive adjustments rather than moving the eyepiece holder abruptly, allowing for precise determination of the optimal focus position.
Despite its compact size, the ZWO EAF has a load capacity of up to 5 kg. This means it can be used with relatively heavy setups and various types of astronomical instruments.
This capability makes it particularly suitable for use with photographic equipment, including a camera, accessories, and various components mounted on the optical train. The EAF is therefore a solution well-suited to both small setups and more demanding installations.
The ZWO EAF features a USB-C connection, which makes it easier to integrate into modern setups. This connector simplifies cable management and expands connection options with the various pieces of equipment used in astrophotography.
In particular, the EAF can be connected to a a camera, a computer, or an ASIAIR controller. This versatility allows you to choose the control method best suited to your setup, whether it's manual operation or a fully automated system.
The ZWO EAF is designed to integrate easily into various software environments. In particular, it is compatible with ASCOM, INDI, ASIStudio, and ASIAIR, as well as with many other astronomical control solutions.
This broad compatibility makes it possible to integrate the EAF into an existing setup without having to completely overhaul the software environment. It can therefore be used with either a computer or a centralized control system.
When used with compatible software, the focusing motor can also help automate imaging sessions. This allows the focus to be precisely adjusted according to the needs of the exposure, which is particularly useful for long nights of astrophotography.
For telescope users Takahashi, C8 and C11, special attention must be paid to the selection of the flexible coupling. The new EAF and EAF Pro are not not fully compatible with the 5-mm flexible coupling.
To ensure proper installation and correct operation, it is therefore We strongly recommend using the 4-mm flexible coupling with these configurations.
The new EAF engine delivers increased torque, which means higher power consumption. This characteristic must be taken into account when selecting the control and power supply system to be used with the motor.
The power consumption of the new EAF may exceed the power available on the USB ports of some older ASIAIR controllers. Therefore, it is Incompatible with the first generation of ASIAIR and the second generation of ASIAIR Pro.
To ensure stable operation and make full use of the engine's capabilities, it is recommended to use a new generation of ASIAIR with a diet tailored to the needs of the EAF.
Focus is one of the most important factors in obtaining perfectly sharp astronomical images. With the ZWO EAF, this process can be motorized and controlled with a high degree of precision, thereby eliminating the need for manual adjustments that could cause slight variations in position.
Its compact size and load capacity of 5 kg, its geared stepper motor 1:128 and its connection USB-C make it a particularly versatile solution for astrophotographers who want to automate their setup.
| Features | ZWO EAF |
|---|---|
| Type | Electronic Focusing Motor |
| Engine | Custom Stepper Motor |
| Reduction ratio | 1:128 |
| Precision | Micrometer adjustment |
| Load capacity | Up to 5 kg |
| Connection | USB-C |
| Software compatibility | ASCOM, INDI, ASIStudio, ASIAIR, and other compatible software |
| Control | Camera, computer, or ASIAIR |
| Recommended coupling | 4 mm for Takahashi, C8, and C11 |
The ZWO EAF is therefore a complete solution for motorizing and automating the focusing of your telescope. Its reduction ratio of 1:128 allows for extremely fine adjustments, while its load capacity of 5 kg allows it to adapt to a wide range of photographic setups. Thanks to its USB-C connection and, thanks to its compatibility with ASCOM, INDI, ASIStudio, and ASIAIR, it integrates easily into many astrophotography systems. However, you should verify the mechanical compatibility of your instrument and, for Takahashi, C8, and C11 configurations, opt for the’4-mm flexible coupling.
Documentation and Compatibility: ZWO official data sheet.
